Nasal sponge



FIG. 1 is a perspective view showing my new design for a nasal sponge;

FIG. 2 is a front elevational view thereof with the back view being a mirror image thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom view thereof; and,

FIG. 5 is an end view thereof with the opposite end being a mirror image thereof. 

The ornamental design for a nasal sponge, as shown and described. 